Condenser plant.



N6. 863,116. I PATENTED AUG.- 13, 1907.

I R. n. TOMLINSON;

v CONDENSER PLANT. APPLIGA'PIUN FILED MAR. 27, 1907.

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23 .230 I v r I WITNESSES:

figwm W v 'TTORNEIZ INVENTOR c :2; run STATES PATENT OFFICE.

llOY -l l. l). TOMLINSON, OF MILWAliKlCll, \l'lSt'ONSIN, ASSIGNOH TOALLIS-OHALMERS UtlMPl-LEY, OF Ml'lill'AliKl ll-l, -\\'ISC( 'I.\'. A(IORPORAIIOX L NEW JERSEY.

CONDENSER PLAN-T.

Specification of Letters Patent.

Patented Aug. 13, 1907'.

Application filed March 27, 1907. Serial in. 354, 13.

To all whom't't may com-cm:

Be it known that I, Horn. 'louu'wsox, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented a certain new and useful Condenser Plant, oiwhich the following is a specification.

This invention relates to condenser plants and is adapted for use eitherwith a surin-cc or a jet condenser, the specific organization oi plant(llHKlUSOd by this specification the drawings accompanying the same is,however", specifically designed for use with a let condenser.

Briefly stated, the condenser plant which constitutes the subjecematterof this invention. comprises the combination with a jet condenser ofwaterand air pumps 5 for relieving the condenser head of the condensingwater and the water ofcondensation and for freeing the condenser head ofair and other gases while at the same time irceing from air one of thewater pumps employed in order that it may not become air bound,

It is a well known fact that air carried into a jet condenser with thecondensing water increases in volumewhere it is desirable to use a jetcondenser and on account of location or natural conditions it is notpossible to have a tail pipe 34 feet high (or whatever the barometriccolumn may be for a specific locality) between the head of the condenserand the surface of the water in the bot well. Under these circumstancesa pump or pumps must be employed to discharge the waterfront thecondenser against the atmospheric pressure which must be overcome, andin pract ice it is found preferable.

to use two or more pumps arranged in series. on account oi the'efiiciency of operation resulting from such an arrangement.

This invention specifically combines two centrifugal or positive rotarypumps arranged in series and connected with the condenser, a separatedry air pump beiug provided to free the condenser of air, said dry airpump also being connected with the pump located ncarerthe condenser tofree that pump of air, a discharge for the dry air pump being providedat a point preferably between the impellers oi the two-pumps, wherebythe back pressure upon the dry air pump is diminished to the pressurewhich exists between the two impellers, which pressure is less thanatmospheric, as the of forcing the-water from a vacuum into the denserhead; 5 the condensing water controlling valve;

6 the tail pipe through which the condensing water and the water ofcondensation is discharged; 7 a centrifugal or rotary pump with whichthe tail pipe 6 connects; 8 the discharge pipe or conduit from saidrotary pump, which inturn becomes the supply pipe or conduit for thesecond centrifugal or rotary pump 9; and 10 the discharge pipe fromsaid-second rotary pump, which is extended below the surface of thewater contained in the hot well '11 The liot well 11 may be providedwith the overflow pipe 12, which may lead to waste or to a tank fromwhich the water may be returned again tothe boilers. The condenser plantshown being adapted for use with a variety of plants, the illustrationis limited to he condenser plant alone, no other parts referred to beingshown.

Theplpe 10 is provided with a check valve 13, and the pipe 3 is providedwith a stop valve 14.

The numeral 15 designates an electric motor as a convenient motor foroperating pumps 7 and 9, and the drawings illustrate the armature ofthis motor and theimpellers of the pumps as all carried on a commonshaft 16. I i

The numeral 17 designates the steam cylinder of the dry air pump towhich steam may be admitted through the pipe 18 and from which the steamis exhausted through the pipe 19, said cylinder being provided with apiston and piston rod which actuate the plunger or piston 0f the airpump 20, the details not being, shown.

The numeral 21 designates the inlet or suction pipe for the dry airpump, which pipe is extended into the condenser head and has its openend located under and adjacent to the umbrella 4 as the air andotherlga-scs collect under this umbrella.

The numeral 22 designatesa pipe which is connected at the point'in pump7 where air collects and which if not removed would cause said pump tobecome air bound, and this pipe 22 conncctswith pipe 2], whereby airwould be withdrawn either from the condenser head or from the pump 7, orboth.

The numeral 23 designates the discharge pipe from the air pump 20, whichis provided with check valve 230, and this pipe, aspreviously stated, ispreferably arranged so that the disclmrge is into the pipe 8.

The operation of the apparatus is as follows: Steam being supplied tothe condenser head through the exhnust'pipc 1, the water which passesinto said head through pipeB condenses said steam, and this water,together with the water of condensation, is withdrawn from the condenserhead by the pumps 7 and 9, operated by the motor 15, and discharged intothe hot well 11. Air and other gases are also withdrawn from thecondonser'head 2 and from the pump 7 by the air pump 20, mid dischargedinto the pipe 8. i i It is apparent thnt by providing the two pumps 7and 9 rind the means disclosed for preventing the first pump 7 frombecoming air bound, said pump will always provide an eificient waterseal'for the condenser head 2.

extremely simple, safe end reliableiormof apparatus for discharging thewriter fromo. condenser under the conditions stated.

v Instead of the specific form. of two pumps shown by I the drawing; anyequivalent structuremay be used,

the term pump as used in this specification and in the claims meaningthe forcing or impellingmeans as distinguished from their inclosingcasings.

What I claim is,--

1. The combination with a condenser, of a pump. for

discharging water therefrom, a dry air pump for dis charging air fromsaid condenser, said dry air pump'being also in communication with saidfirst mentioned pumpto discharge air from said pump, and anotherpurupndapted to receive the water discharged by said first mentionedpump and the air discharged by said dry air pump un'd'to discharge saidwater and air to a suitable place.

3. The combination with a'jet condenser provided with a steam inlet anda water outlet, or a centrifugal pump in open communication with saidcondense r. :1 dry air pump provided 'with ssuction pipe extendedinto'suid condenser, said dry air pump also being provided with asuction pipe in open communication-with the interior of said centrifugalpump, and another centrifugal pump connected with said first mentionedcentrifugal pump by a conduit, said dry air pump'being provided with adischarge pipe adapted to dischurge into said conduit at a point betweenthe two In testimony whcreof, I aflix my signature in the pres

